Home / 1,382,043.40-1,907,278.74-770,196.88

Finding the Fourth Proportional to 1,382,043.40, 1,907,278.74 and 770,196.88

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Solution

The fourth proportional to 1,382,043.40, 1,907,278.74 and 770,196.88 is: 1,062,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,043.40 : 1,907,278.74 = 770,196.88 : x
  2. Step 2: Convert to fraction form
    1,382,043.40/1,907,278.74 = 770,196.88/x
  3. Step 3: Cross multiply
    1,382,043.40x = 1,907,278.74 × 770,196.88
  4. Step 4: Simplify right side
    1,382,043.40x = 1,468,980,134,838.33
  5. Step 5: Solve for x
    x = 1,468,980,134,838.33/1,382,043.40
  6. Step 6: Final answer
    x = 1,062,904.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.